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Everyday Examples of Redundancy and Diversity

publish date: 2026/10/04 04:25:26.823913 UTC

Redundancy and diversity are common strategies in daily life. Which of the following everyday practices correctly demonstrate both redundancy and diversity?

Using a single lock on the front door and an identical model on the back door.

Backing up computer files (redundancy) by storing the secondary copy on a separate, diverse external device type (diversity).

Securing a door with multiple locks (redundancy) where the locks are of different mechanical types (diversity).

Replacing door keys periodically before they wear out physically.

Reference

Software Engineering, Ian Sommerville, 9th edition

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Redundancy and Diversity

Everyday Examples of Redundancy and Diversity

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Reference

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